Mechanical igniter



. RAGBJS]! A. L. POWELL MECHANI CAL IGNITER Original Filed Feb. 2. 1921 v \\\\\\\\\\\\\\\\\||||Il///////'///////',:l

Patented duly 31, I923.

warren stares ALVAH L. POWELL, OF MILES CITY, IMONTANA, ASSIGNOB TO THE A. L. POWELL POWER (30., INC, OF MILES CITY, l/IONTANA, A BGZDY GORPOBATE.

IVIECI-IANIGAL IGNITER.

Application filed February 2, 1921, Serial No. e l-1,979.

My invention relates to improvements in mechanical igniters in which I obtain saticient heat to ignite oil, or pieces of ll1'il2tll1- mable material, by the effect of air compressed to a point where the heat induced is sufficient to cause combustion. In the annexed drawings I show a torm of my inven tion, intended particularly for household use.

Fig. 1 is an elevation, partly in section.

Fig. 2 is a sectional elevation of a modification.

In Fig. 1, a frame, A, is bored to fit a plunger of relatively small diameter, A On one end of said plunger a packing disc, A is preferably placed to insure tightness. ()n the other end of plunger a pin, A is fitted that connects with a slotted lever, A, as shown. The said lever is pivoted at A Near the free end of A there is a hole at right angles to it, A, in which is a check valve, A. A pipe, A communicates with any convenient fuel supply. On end of casting A there is fitted a check valve A", the stem of which passes through a guide hole in yoke A A spring, A, holds A to its seat and is set to resist a high pressure on the said valve.

To operate the igniter the lever A" is depressed. This draws plunger A downward and a suctionv eilect is produced above it. Valve A unseats and admits a small quantity of fuel and air through air vent B. Lever A is then raiser. Compression results and the temperature 01 the fuel and air is raised. At a point near end of stroke ignition results and the pressure is sharply augmented, overcoming the force of spring Renewed December 22, P322.

escapes or been A and lifting valve A A. flame that may be utilized to light a ta any inflammable material that placed in its path.

In Fig. 2 I show a rotary screw drive for moving plunger A The bevel gears C, C. rotate. C is interiorly threaded to it the thread on C and the plunger is moved by the movement oi the screw as it feeds forward. In the drawing the parts are shown at end of up stroke. l

A bracket is formed on the casting A, as at I), by which the igniter may be attached to a walker to any convenient location.

wha I believe is new and ask to have protected by Letters Patent is 1. In a mechanical igniter, a frame, a bored hole in said frame, a piston operable in said bored hole, an inlet valve, an outlet valve, means for holding said outlet valve to resist a pie-arranged pressure, communicatinp; means from said valves to said bored hole, a lever, means tor supporting said lever on said frame, a slot in said lever, pin on said piston, means for operating spiston by said lever, and means for 'rasteninp; said frame to a supporting surface, substantially as described.

2. In a mechanical igniter, the combination of a frame, means for fastening s frame to a supporting surface, a bored bore in said frame, an inlet valve, an outlet valve, a spring, means for setting said spring to resist a prearranged pressure, means where by said valves communicate with said bored hole, a piston operable in said bored hole, a slotted lever, means for pivoting" said lever on said frame, a pin. means whereby s 'd lever is in operative engagement with said piston by the said pin, and means for augmenting the temperature of: the contents of said bored hole by compression, substan tially as described.

In testimony whereof I ailiX my signature.

ALVAH L. POWELL. 

